Results 171 to 180 of about 1,497 (206)

Sleeping upside-down: Knockdown of a sleep-associated gene induces daytime sleep in the jellyfish Cassiopea [PDF]

Proc Natl Acad Sci U S A
Significance Sleep is a fundamental behavioral and physiological process conserved across diverse animals, yet its regulatory mechanisms remain unclear. We investigated the regulation of sleep in an early branching animal lineage with a relatively simple
Michael J. Abrams, Aki Ohdera, Diana A. Francis, Owen Donayre, Henry Chen, Kevin Lu, Celeste Y. Hsu, Hannah Zeigler, Richard M. Harland   +8 more
semanticscholar   +2 more sources

Marine Biotoxins as Potential Nematocide: Impact of Cassiopea andromeda Venom Against Acute and Chronic Trichinellosis in Murine model [PDF]

Acta Parasitol
A significant challenge in the treatment of trichinellosis is addressing theencysted larvae. The efficacy of albendazole on larvae appears to be limited, underscoring theurgent necessity for developing effective alternatives.
Rasha A. Elmahy, Amina M. Salama, N. Radwan, Alaa Y Moustafa, S. Harras, Mona M. Elwan   +5 more
semanticscholar   +2 more sources

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Colonization of the Mediterranean Sea by the Lessepsian invasive jellyfish Cassiopea andromeda (Forskål, 1775) – a systematic review

Mediterranean Marine Science
The colonization of the Mediterranean Sea by Cassiopea andromeda underscores the complex interaction of biological, environmental, and anthropogenic factors influencing the spread of invasive species. This study describes the dispersal of C.
Paloma RAMOS-PÉREZ, J. Quispe-Becerra, J. Oliver, C. Marcos, Á. Pérez-Ruzafa, Alfredo Fernández-Alías   +5 more
semanticscholar   +1 more source

C’è una strana stella in Cassiopea

2021
Dall’analisi di un oggetto stellare dalle caratteristiche inaspettate, un gruppo di ricercatori dell’università di Potsdam ha scoperto che potrebbe essere un nuovo tipo di stella, finora solo ipotizzato, nato dalla fusione di due nane bianche: una di carbonio e ossigeno e l’altra di neon e ...
openaire   +1 more source

iNaturalist data suggests a recent northward expansion of the upside-down jellyfish, Cassiopea.

Science of the Total Environment
Tropicalization, the poleward expansion of tropical species into warming subtropical and temperate latitudes, is fundamentally altering marine community structure.
Myles A Wagner, Ziyu Wang, Colin J. Anthony, Edgardo Rivera, Marie E. Strader   +4 more
semanticscholar   +1 more source

A comparison of the toxinological characteristics of two Cassiopea and Aurelia species

Toxicon, 2001
A comparison of the toxinological properties of nematocyst venoms from Old and New World Cassiopea and Aurelia species was undertaken. The cnidom of venomous Cassiopea andromeda (Ca) and Aurelia (Aa(RS)) from the Red Sea was identical to that of nonvenomous Bahamian Cassiopea xamancha (Cx) and Chesapeake Bay Aurelia aurita (Aa(CB)), respectively.
F F, Radwan, J W, Burnett, D A, Bloom, T, Coliano, M E, Eldefrawi, H, Erderly, L, Aurelian, M, Torres, E P, Heimer-de la Cotera   +8 more
openaire   +2 more sources

Così esplose Cassiopea A

2017
Le particelle fantasma sono ovunque nell'Universo e sarebbero da annoverare tra le cause delle esplosioni delle supernove. A questa teoria stanno lavorando dei ricercatori del Max Plank e del Riken, studiando nello specifico i resti giovani e non troppo lontani di Cas A. Con il commento di Enrico Cappellaro (Inaf)
openaire   +1 more source

Bioaccumulation Patterns of Trace Elements in Jellyfish (Crambionella orsini and Cassiopea andromeda) from Northwestern Coastal Waters of the Persian Gulf

Journal of Marine Science and Engineering
Trace element pollution in the Persian Gulf originates from industrial activities, urbanization, shipping, and oil extraction, leading to accumulation in sediments, water, and marine life such as jellyfish.
Yousef Darvishi, H. Pourkhabbaz, P. Pastorino, Giuseppe Esposito, M. Banaee, C. Faggio   +5 more
semanticscholar   +1 more source

Cassiopea and Its Zooxanthellae

2016
As many cnidarians, the upside-down jellyfish Cassiopea spec. lives in an obligate symbiosis with its zooxanthellae: Dinoflagellates of the genus Symbiodinium. The symbiosis seems mutual and both partners have adapted to suit the partner’s needs. Despite the very close co-operation the zooxanthellae are not transmitted vertically but are taken up from ...
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Productivity and organic consumption in Cassiopea and Condylactus

Journal of Experimental Marine Biology and Ecology, 1975
Abstract Oxygen production and consumption was determined for Cassiopea and Condylactus containing symbiotic algae (zooxanthellae). 88 % of both animals produce more organic material than they consumed during a 12-h light period. It is suggested that zooxanthellae contribute a significant nutritional supplementation and a greater ecological ...
openaire   +1 more source